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FWNuke

Fledgling Freddie
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Once you get it moving how difficult is it to keep it moving? Noone's disputing that they'll be an initial amount of energy needed to get the wheels rolling, the only way round that would be to have frictionless bearings, but once you've got past that point (which requires a tiny fraction of the power put out by the plane's engine) then the wheels have no further impact.



As i've said above friction plays a tiny role at the start when the wheels actually start rolling but once you've got past that frictional force then the wheels are of no consequence.

There is still friction in a moving wheel.
 

Scouse

Giant Thundercunt
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Please Krazeh. Don't bite. I'm with Tom, nobody could be that stupid. Not even that yank who washed his hands in the pisser :)
 

FWNuke

Fledgling Freddie
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Please Krazeh. Don't bite. I'm with Tom, nobody could be that stupid. Not even that yank who washed his hands in the pisser :)

You referring to me? Do you not believe that there is friction between the ground and a moving tire?
 

Krazeh

Part of the furniture
Joined
Dec 30, 2003
Messages
950
There is still friction in a moving wheel.

Frictional force in this scenario is for all intents and purposes constant. Once you've exceeded the force required to overcome the friction in the wheel bearings then you don't need to add any more energy into that system. Any friction between the wheel and the ground is of no consequence because it's not transmitted to the plane.
 

FWNuke

Fledgling Freddie
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Messages
136
Frictional force in this scenario is for all intents and purposes constant. Once you've exceeded the force required to overcome the friction in the wheel bearings then you don't need to add any more energy into that system. Any friction between the wheel and the ground is of no consequence because it's not transmitted to the plane.

Which is why I said that it all depends on how the hypothetical system was set up.

If the treadmill was able to instantly go to the speed of light (and the plane, wheels, bearings etc. could handle that) is one example.

All kinds of things come into play, and friction is one of them.
 

rynnor

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Hey - this is to those in the US - has it been cold for the time of year over there for the last few weeks?
 

Krazeh

Part of the furniture
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Which is why I said that it all depends on how the hypothetical system was set up.

If the treadmill was able to instantly go to the speed of light (and the plane, wheels, bearings etc. could handle that) is one example.

All kinds of things come into play, and friction is one of them.

No it doesn't. Friction comes into play only when considering the tiny initial force needed to overcome the friction in the wheel bearings. After that it plays no further part, regardless of how fast the treadmill is going.
 

Scouse

Giant Thundercunt
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Hey - this is to those in the US - has it been cold for the time of year over there for the last few weeks?

Kink in the jetstream rynnor m8. Over northern Europe. Probably to do with the sun's influence.

Been reading about it in New Scientist :)



Edit: And Krazeh. Stopit! You're being Trolled!
 

rynnor

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Kink in the jetstream rynnor m8. Over northern Europe. Probably to do with the sun's influence.

Been reading about it in New Scientist :)

I tend to think its the continuation of the North Atlantic Oscillation that brought us such a harsh winter - I was just interested to see how widespread its effects were.

The Sun is blank today - no spots - it should be ramping up but despite a brief flareup in February its been bloody quiet.

Those counting sunspots have recently gotten so desperate they have started counting spots with 0 area :)
 

TdC

Trem's hunky sex love muffin
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whey protein is a by product of the cheese making process. It's a high quality protein and very good for you, also far cheaper than meat as a source of protein. Nothing bad about it, it's used by lots of people and is beneficial to your health.

Your eating habits; you've conditioned yourself to eat that way, you need to reprogram yourself. Only way to do this is force yourself to eat regularly, keep the meal sizes small. So if you'd normally have two sandwiches, have one. one piece of meat instead of two etc. Also, it's healther to have have low GI carbs like brown pasta, brown bread etc, but they take longer for your body to break down. So you stay full longer. To give yourself a boost, stick to white breads and pasta and rice.

I say this from experience Wazz, it's hard to condition yourself to eat so much a day. Once you give it a couple of weeks, you will get hungry naturally every 2 to 3 hours, your body will expect the fuel.

Wazz a large egg has 12g of protein, plus the amino acids needed for your body to use it. Egg's are the best source of complete protein, eat at least one a day if not two for now. Lots of nutrition guides if you google around, they show you the protein content of a chicken breast etc. In real terms 120grams of protein = a fuck load of food, hence you needing the whey protein. I'd recommend reflex natural or instant whey. Very little sugar content, no crap, and a reasonable price. 20grams of protein per serving, easy on your stomach and not heavy.

You don't have to want to be hench, but these basic principles apply to someone of your body type, you need to give your body more fuel than it needs everyday in order to gain any mass at all.

Chetzor if you can program me a diet to slim me down a little while still eating three meals a day I swear on the soul of my dead cat that I will try it for a month :)

I kid about being a fat American, but I'm over 40 years old 5'8" and weigh just about 140lbs. When I was in college and was a very serious competitive distance runner I was as low as 115lbs. Some very good nutritional advice above from Ch3tan.

friend of mine is like you. he's 48, same size, same weight. he does kickboxing three times a week though, and is a cross-country runner for "fun" o0
 

Son of Sluggish

Fledgling Freddie
Joined
May 5, 2010
Messages
210
Once you get it moving how difficult is it to keep it moving? Noone's disputing that they'll be an initial amount of energy needed to get the wheels rolling, the only way round that would be to have frictionless bearings, but once you've got past that point (which requires a tiny fraction of the power put out by the plane's engine) then the wheels have no further impact.



As i've said above friction plays a tiny role at the start when the wheels actually start rolling but once you've got past that frictional force then the wheels are of no consequence.

You're almost on to it! The conveyor belt is matching he wheel speed. That means long as the plane attempts to move, the conveyor belt will be accelerating the wheel speed.
 

FWNuke

Fledgling Freddie
Joined
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Messages
136
You're almost on to it! The conveyor belt is matching he wheel speed. That means long as the plane attempts to move, the conveyor belt will be accelerating the wheel speed.


The wheel speed has nothing to do with the plane moving forward. It doesn't matter how fast the conveyor or the wheels are going, the plane will still move forward and take off.
 

Son of Sluggish

Fledgling Freddie
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Messages
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The wheel speed has nothing to do with the plane moving forward. It doesn't matter how fast the conveyor or the wheels are going, the plane will still move forward and take off.

You would be right if I were talking about the speed of the wheel. I'm not. I'm talking about acceleration of the speed of the wheels.
 

rynnor

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Oh and another one for the Americans - what do you think of NASA as an organisation?
 

Krazeh

Part of the furniture
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You would be right if I were talking about the speed of the wheel. I'm not. I'm talking about acceleration of the speed of the wheels.

It makes no difference what aspect of the wheels turning you're talking about. The wheels have fuck all to do with the plane moving, anything they do has no impact on the plane's ability to move forward. They could only have any impact if they were responsible for powering the plane forward, which they're not.
 

ramathorn

Fledgling Freddie
Joined
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Messages
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Wazzer I'll tell some of the things that worked (or are working) for me, although I was sort of the opposite, dropping the beef while building muscle.

White carbs are the devil, stay the hell away from them, stick only to brown (high fiber) carbs. Porridge, brown rice / pasta, pulses and wholemeal breads - learn to love them. Get wholemeal pita bread, they taste great (I cant stand brown bread) and get you through that bread craving.

As Ch3t says, you need to change how you eat, 5 to 6 times is a must, it doesnt have to be "meals" though. For breakfast a bowl of porridge (if you can stick it use skimmed milk as apposed to semi skimmed or up) and follow it up straight up with some protein, if you can hack it a couple of raw eggs straight down the hatch is the best. Build the rest of your main meals around lean sources of protein and a fistful size of good (read: brown) carbs. A chicken breast and a drop of brown rice, blend up some tomatoes and throw it over it if you cant take it plain. Fill those pita's with whatever you can get your hands on, I scramble eggs and throw them in, tinned tuna and jalapeno's works good too. For the "meals" between the main ones, shakes and a bit of fruit do the trick, there are also good protein bars out there that can help get you past the chocolate craving but do your research as a lot of them are very high in sugar. Nuts are also a good filler here but not too much as they are very high in the calories (although they are all good). Keep red meat to a minimum, processed meats completely out. A cheat day once a week is OK, have that bit of chocolate or that bit of white bread, just dont use it as an excuse to pig out and ruin all the good work you've done the other six days.


Drink water and lots of it, bring a bottle to work and keep it filled, I find it much easier to get drinking out of a bottle than out of a glass (dont know why).

Don't underestimate the need for cardio, it will shed excess fat and keep the motab up. How many days a week do you train? I'm currently six days a week on weights and every other day (3 x a week) do a bit of cardio. My cardio is either just rowing or running, but dont get caught up with huge amounts of it, twenty minutes - half an hour should do it, if your rowing break it up into 5 / 6 500m splits and hit them as hard as you can, take a minute between each split and go again. If you're running find a bit of a field some where, mark approx 60 metres out on it, sprint the 60m and jog back to where you started then sprint again, do this five times the first time you do it and up it by one every time thereafter, once you're doing 20 increase the distance to 70m.

Do not under estimate the importance of quality suppliments, a good protein shake with creatine in will make all the difference, dont drink them wth milk, only with water and if you cant do that then just blend it up with some fruit.

Don't use machines where possible, unavoidable in some cases and they are very good for some muscles but for the best part that just dont cut it. Aim for a 90% free weight routine.

How are you splitting up your training days? Arms / Shoulders - Chest / Back - Legs / Stomach?

EDIT: typo's - check the link in my sig and you will see how a real man trains :p
 

rynnor

Rockhound
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Quite. We got a dusting of snow day before yesterday which is unheard of this time of year.

It snowed today slightly in Newcastle and you can still Ski in Scotland as we speak - if we got a few years of this or worse the Northern Hemisphere could actually be in trouble.
 

Son of Sluggish

Fledgling Freddie
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Messages
210
It makes no difference what aspect of the wheels turning you're talking about. The wheels have fuck all to do with the plane moving, anything they do has no impact on the plane's ability to move forward. They could only have any impact if they were responsible for powering the plane forward, which they're not.

I'll ask again: Have you ever spun a tire on a car on a lift? Was it effortless to get spinning?

Have you ever revved the engine in a car and notice that it rocks back and forth? Do you know why this happens?
 

FWNuke

Fledgling Freddie
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Messages
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Oh and another one for the Americans - what do you think of NASA as an organisation?


I don't think of it at all. Sometimes I see some cool thing they've done or some neat pictures from Hubble, but I don't follow them or think about NASA.

The weather were I am it is pretty nice all year round and it's not been any cooler that I've noticed.
 

rynnor

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Great history to be proud of. Lately has been reduced to the American version of East Anglia...

Hah - exactly my thoughts on the matter but I wondered how they were regarded in the US. Is this a widely held perception overthere?

They still do a ton of fantastic work - I check some of their sites everyday but I couldnt escape an awareness that they seemed to arrive at conclusions from a certain slant.
 

Son of Sluggish

Fledgling Freddie
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Messages
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It snowed today slightly in Newcastle and you can still Ski in Scotland as we speak - if we got a few years of this or worse the Northern Hemisphere could actually be in trouble.

But... Algore told me the world had a fever and we were all going to burst into flames...
 

FWNuke

Fledgling Freddie
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Messages
136
Hah - exactly my thoughts on the matter but I wondered how they were regarded in the US. Is this a widely held perception overthere?

They still do a ton of fantastic work - I check some of their sites everyday but I couldnt escape an awareness that they seemed to arrive at conclusions from a certain slant.

On our forum, we mostly all think the global warming "science" is a bunch of bullshit. Nasa even won't release their climate data records.
 

Krazeh

Part of the furniture
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Messages
950
I'll ask again: Have you ever spun a tire on a car on a lift? Was it effortless to get spinning?

No, because there's a level of friction to overcome in the wheel bearings but once you've got it spinning it's easy to keep it spinning.

Have you ever revved the engine in a car and notice that it rocks back and forth? Do you know why this happens?

The fact that you're even trying to discuss this in terms of what a car does really makes me think you're not understanding the whole problem at hand. But anyway, please enlighten me as to why the car rocks back and forth and why that has anything to do with the movement of a plane being powered by jet engines or propellors, not the wheels.
 

Ch3tan

I aer teh win!!
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Dec 22, 2003
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Chetzor if you can program me a diet to slim me down a little while still eating three meals a day I swear on the soul of my dead cat that I will try it for a month :)

Switch to 4 or 5 smaller meals a day, same amount of food, eat crap if you want. By eating regularly, you don't get blood sugar spikes and release insulin which creates fat stores blah blah etc.

So same amount of calories as you do now, but eat at least every 3 hours from breakfast to evening meal.

Cut out all white, high GI carbs as well teeds. Brown rice, pasta and bread only for you mate.
 

rynnor

Rockhound
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But... Algore told me the world had a fever and we were all going to burst into flames...

Well he is a politician, who is also making a killing on green tech investments co-incidentally :p

I think recent research may be explaining a few things that never made sense.

In the infamous Mann et al. 'Hockey Stick' graph the medieval warm period and other warm and cold periods in the last thousand years were missed out - this was in part due to the lack of evidence for them globally yet there was a lot of evidence for them in northern europe.

It now seems likely that small variations in solar output can have a dis-proportionate effect on the weather systems in the Northern Hemisphere - this would explain periods like the 'Little Ice Age' which co-incided with the Maunder Minimum - a period of prolonged exceptionally low solar activity.

Most worrying on that note is the current Solar cycle 24 - there are indications that it will be an exceptionally weak cycle and if Livingston & Penn are correct we could be looking at a Maunder style 'Grand Minima'.

If that happened we really could be in trouble and not in a hundred years plus.

Some estimates say average temperature dropped by 7 degrees Celsius in a decade at the start of the Maunder minimum - that would be a disaster.
 

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